It's as Relaxing and Enjoyable as Waiting for the Doomsday That Will Eventually Come

On the eve of the end of the world, a girl with long black hair came to a semi-basement door carrying a suitcase alone. Chen Qing smiled and turned the key lightly on his fingertips for half a turn, then opened the lock, and the slightly heavy door opened in response. This is a story about a group of girls before their final journey ends. Purpose: Female friendship